a gallup poll out today has romney at 49%, president obama 47%. that is within the poll's margin of error so it is still essentially a tie. the two campaigns tangled today over the definition of one of the shortest words in the english language. the question is whether vice president biden misled the american people in the debate last night and whether he had misused the word "we." biden was responding to charges that the state department turned down requests for more security in libya before the terror attack last month that killed the u.s. ambassador and three other americans. here's what the vice president said. >> well, we weren't told they wanted more security. we did not know they wanted more security again. and, by the way, at the time we were told exactly -- we said exactly what the intelligence community told us that they knew. that was the assessment. >> pelley: the fight today was over what he meant by "we." our campaign 2012 correspondents on r on the story and we'll go first to jan crawford who gotten a earful from the romney campaign